CN111092628A - Radio frequency circuit and electronic device - Google Patents
Radio frequency circuit and electronic device Download PDFInfo
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- CN111092628A CN111092628A CN201911265708.9A CN201911265708A CN111092628A CN 111092628 A CN111092628 A CN 111092628A CN 201911265708 A CN201911265708 A CN 201911265708A CN 111092628 A CN111092628 A CN 111092628A
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Abstract
The embodiment of the application provides a radio frequency circuit and electronic equipment. The radio frequency circuit comprises a radio frequency transceiving module, a first antenna, a second antenna, a third antenna, a filtering module, a frequency division module, a first multiplexer and a second multiplexer; the first antenna is electrically connected with the radio frequency transceiving module through the frequency division module and the filtering module; the second antenna is electrically connected with the radio frequency transceiving module through the first multiplexer; the third antenna is electrically connected with the radio frequency transceiving module through the second multiplexer. The scheme can improve the radio frequency performance of the radio frequency circuit.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a radio frequency circuit and an electronic device.
Background
With the development of communication technology, more and more communication frequency bands can be supported by electronic devices. For example, a Long Term Evolution (LTE) communication signal may include signals having a frequency between 700MHz and 2700 MHz. The Carrier Aggregation (CA) technology can aggregate signals of multiple frequency bands together, thereby increasing the uplink download rate of the network.
There are many radio frequency circuits for implementing carrier aggregation technology, and the core principle is to distinguish signals of each frequency band of carrier aggregation. There are two main implementations at present: a frequency divider scheme and a multiplexer scheme.
However, when the frequencies of the rf signals are close, the frequency divider is difficult to distinguish the frequency bands of the rf signals, and even if the frequency bands can be distinguished, the difference loss of the frequency divider is relatively serious, which results in the decrease of the rf performance of the rf circuit; although the multiplexer method can make up for the above-mentioned disadvantage of the frequency divider method, it is expensive and not suitable for mass production.
Disclosure of Invention
The embodiment of the application provides a radio frequency circuit and electronic equipment, which can improve the radio frequency performance of the radio frequency circuit.
In a first aspect, an embodiment of the present application provides a radio frequency circuit, including: the system comprises a radio frequency transceiving module, a first antenna, a second antenna, a third antenna, a filtering module, a frequency division module, a first multiplexer and a second multiplexer;
the first antenna is electrically connected with the radio frequency transceiving module through the frequency division module and the filtering module;
the second antenna is electrically connected with the radio frequency transceiving module through the first multiplexer;
the third antenna is electrically connected with the radio frequency transceiving module through the second multiplexer.
In the radio frequency circuit provided in the embodiment of the present application, the first multiplexer is a duplexer, and the second multiplexer is a quadplexer.
In the radio frequency circuit provided in the embodiment of the present application, the radio frequency transceiver module includes a first signal port, a second signal port, and a third signal port;
the third antenna is electrically connected with the first signal port of the radio frequency transceiving module through the duplexer;
the second antenna is electrically connected with the second signal port and the third signal port of the radio frequency transceiver module through the quadruplex.
In the radio frequency circuit provided in the embodiment of the present application, the radio frequency circuit further includes a power amplification module, the radio frequency transceiver module further includes a fourth signal port, and the power amplification module is electrically connected to the fourth signal port of the radio frequency circuit;
the radio frequency transceiver module is electrically connected with the duplexer and the quadruplex respectively through the power amplification module.
In the radio frequency circuit provided in the embodiment of the present application, the duplexer includes a first signal port, a second signal port, and a third signal port;
the third antenna is electrically connected with the first signal port of the duplexer;
the second signal port of the duplexer is electrically connected with the first signal port of the radio frequency transceiving module;
and the third signal port of the duplexer is electrically connected with the power amplification module.
In the radio frequency circuit provided in the embodiment of the present application, the quadplexer includes a first signal port, a second signal port, a third signal port, and a fourth signal port;
the second antenna is electrically connected with a first signal port of the quadplexer;
a second signal port of the quadruplex is electrically connected with a second signal port of the radio frequency transceiver module;
a third signal port of the quadruplex is electrically connected with a third signal port of the radio frequency transceiver module;
and a fourth signal port of the quadplexer is electrically connected with the power amplification module.
In the radio frequency circuit provided by the embodiment of the application, the filtering module includes a first filter and a second filter;
the first antenna is electrically connected with the first filter and the second filter respectively through the frequency division module;
the first filter is electrically connected with the radio frequency transceiving module;
the second filter is electrically connected with the radio frequency transceiving module.
In the radio frequency circuit provided in the embodiment of the present application, the frequency division module includes a first signal port, a second signal port, and a third signal port;
the first antenna is electrically connected with a first signal port of the frequency division module;
the first filter is electrically connected with a second signal port of the frequency division module;
the second filter is electrically connected to a third signal port of the frequency division module.
In the radio frequency circuit provided in the embodiment of the present application, the first antenna is a diversity antenna, and the second antenna and the third antenna are main diversity antennas.
In a second aspect, an embodiment of the present application provides an electronic device, which includes a processor and the radio frequency circuit as described above, where the radio frequency circuit is electrically connected to the processor, and the processor is configured to process data received by the radio frequency circuit.
In view of the above, the radio frequency circuit provided in the embodiment of the present application includes a radio frequency transceiver module, a first antenna, a second antenna, a third antenna, a filtering module, a frequency division module, a first multiplexer, and a second multiplexer; the first antenna is electrically connected with the radio frequency transceiving module through the frequency division module and the filtering module; the second antenna is electrically connected with the radio frequency transceiving module through the first multiplexer; the third antenna is electrically connected with the radio frequency transceiving module through the second multiplexer. The scheme can improve the radio frequency performance of the radio frequency circuit.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a radio frequency transceiver module according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a duplexer provided in an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a quadplexer provided in an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a filtering module according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of a frequency division module according to an embodiment of the present application.
Fig. 7 is another schematic structural diagram of a radio frequency circuit according to an embodiment of the present application.
Fig. 8 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiments of the present application provide a radio frequency circuit and an electronic device, which will be described in detail below.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present disclosure. The radio frequency circuit 100 may be applied to electronic devices such as a mobile phone, a tablet computer, and a wearable device, and is not limited herein.
The rf circuit 100 provided in the embodiment of the present application may include an rf transceiver module 10, a first antenna 20, a second antenna 30, a third antenna 40, a frequency division module 50, a filtering module 60, a first multiplexer 70, and a second multiplexer 80.
The first antenna 20 is electrically connected with the radio frequency transceiver module 10 through the frequency division module 50 and the filtering module 60; the second antenna 30 is electrically connected to the rf transceiver module 20 through the first multiplexer 70; the third antenna 40 is electrically connected to the rf transceiver module 10 through the second multiplexer 80.
The radio frequency transceiver module 10 may be configured to transceive a first radio frequency signal, a second radio frequency signal, and a third radio frequency signal. It should be noted that the first frequency band, the second frequency band and the third frequency band belong to different frequency bands.
The first antenna 20 is a diversity antenna, and may be configured to receive the first radio frequency signal, the second radio frequency signal, the third radio frequency signal, and two or three carrier aggregation radio frequency signals of the first radio frequency signal, the second radio frequency signal, and the third radio frequency signal.
In some embodiments, when the first antenna 20 receives the carrier aggregation rf signal of the first rf signal, the second rf signal, and the third rf signal, the carrier aggregation rf signal of the first rf signal and the second rf signal and the third rf signal may be divided by the frequency division module 50. The carrier aggregation rf signal of the first rf signal and the second rf signal may be divided into the first rf signal and the second rf signal after passing through the filtering module 60. The first rf signal, the second rf signal and the third rf signal are respectively input to the rf transceiver module 10 after passing through the filtering module 60. Thus, the rf transceiver module 10 can perform frequency conversion and demodulation on the received three rf signals into baseband digital signals.
The second antenna 30 is a main set antenna, and may be configured to receive and transmit the first radio frequency signal and the second radio frequency signal and a carrier aggregation radio frequency signal of the first radio frequency signal and the second radio frequency signal.
In some embodiments, when the second antenna 30 receives the carrier aggregation rf signals of the first rf signal and the second rf signal, the carrier aggregation rf signals of the first rf signal and the second rf signal may be divided into the first rf signal and the second rf signal by the second multiplexer 80 and then input to the rf transceiver module 10 respectively. Thus, the rf transceiver module 10 can perform frequency conversion and demodulation operations on the two received rf signals into baseband digital signals.
The third antenna 40 is a main set antenna, and may be configured to receive and transmit a third radio frequency signal.
In some embodiments, the third rf signal may be input to the rf transceiver module 10 through the first multiplexer 70. The rf transceiver module 10 can perform frequency conversion and demodulation on the received rf signal into baseband digital signal.
In the embodiment of the present application, the first multiplexer 70 is a duplexer, and the second multiplexer is a quadplexer.
In some embodiments, the frequency Band of the first rf signal may be Band1, the frequency Band of the second rf signal may be Band3, and the frequency Band of the third rf signal may be Band 7. It is to be understood that the frequency bands of the first radio frequency signal, the second radio frequency signal and the third radio frequency signal may also be other frequency bands, and are not limited herein. The frequencies of the first radio frequency signal, the second radio frequency signal and the third radio frequency signal may be similar frequencies.
It should be noted that the terms "first", "second" and "third" in the description of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the described features.
As described above, the radio frequency circuit 100 provided in this embodiment can distinguish the frequency bands of the first radio frequency signal, the second radio frequency signal, and the third radio frequency signal, and transmit and receive the first radio frequency signal and the second radio frequency signal and the carrier aggregation radio frequency signal of the first radio frequency signal and the second radio frequency signal through the second antenna 30, and transmit and receive the third radio frequency signal through the third antenna 40, and carrier aggregation can be achieved without providing a frequency division module and an expensive device such as a duplexer on the path between the second antenna 30 and the third antenna 40. Therefore, the rf circuit 100 provided in this embodiment can improve the rf performance of the rf circuit and reduce the cost of the rf circuit, and is suitable for mass production.
In some embodiments, please refer to fig. 2-7. Fig. 2-6 are schematic diagrams of the rf transceiver module 10, the first multiplexer 70 (i.e., a duplexer), the second multiplexer 80 (i.e., a quad-multiplexer), the filter module 60, and the frequency divider module 50 shown in fig. 1, respectively. Fig. 7 is another schematic structural diagram of the rf circuit 100 according to an embodiment of the present disclosure.
The radio frequency transceiver module 10 may further include a power amplifying module 90. The radio frequency transceiver module 10 may include a first signal port 11, a second signal port 12, a third signal port 13, and a fourth signal port 14.
The duplexer 70 may include a first signal port 71, a second signal port 72, and a third signal port 73.
The quadplexer 80 may include a first signal port 81, a second signal port 82, a third signal port 83, and a fourth signal port 84.
The filtering module 60 may include a first filter 61 and a second filter 62.
The frequency division module 50 may include a first signal port 51, a second signal port 52, and a third signal port 53.
The first antenna 20 may be electrically connected to the first filter 61 and the second filter 62 through the frequency division module 50. The first filter 61 and the second filter 62 are electrically connected to the rf transceiver module 10, respectively. Note that the first antenna 20 is electrically connected to the first signal port 51 of the frequency division module 50. The first filter 61 is electrically connected to the second signal port 52 of the frequency division module 50. The second filter 62 is electrically connected to the third signal port 53 of the frequency division module 50.
In some embodiments, when the first antenna 20 receives the carrier aggregation rf signal of the first rf signal, the second rf signal, and the third rf signal, the carrier aggregation rf signal of the first rf signal and the second rf signal and the third rf signal may be divided by the frequency division module 50. The carrier aggregation rf signal of the first rf signal and the second rf signal may be divided into the first rf signal and the second rf signal after passing through the first filter 61. The first rf signal, the second rf signal and the third rf signal are respectively input to the rf transceiver module 10 after passing through the second filter 62. Thus, the rf transceiver module 10 can perform frequency conversion and demodulation on the received three rf signals into baseband digital signals.
The second antenna 30 may be electrically connected to the second signal port 12 and the third signal port 13 of the rf transceiver module 10 through the quadplexer 80. Specifically, the first signal port 81 of the quadplexer 80 may be electrically connected to the first antenna 30. The second signal port 82 of the quadplexer 80 may be electrically connected with the second signal port 12 of the rf signal transceiver module 10. The third signal port 83 of the quadplexer 80 may be electrically connected to the third signal port 13 of the rf signal transceiver module 10. The fourth signal port 84 of the quadplexer 80 may be electrically connected to a power amplifier 90.
In some embodiments, when the second antenna 30 receives the carrier aggregation rf signals of the first rf signal and the second rf signal, the carrier aggregation rf signals of the first rf signal and the second rf signal may be divided into the first rf signal and the second rf signal by the quadplexer 80 and then input to the rf transceiver module 10 respectively. Thus, the rf transceiver module 10 can perform frequency conversion and demodulation operations on the two received rf signals into baseband digital signals.
Wherein the third antenna 40 may be electrically connected with the first signal port 71 of the duplexer 70. The second signal port of the duplexer 70 may be electrically connected with the first signal port 11 of the rf transceiver module 10. The third signal port 73 of the duplexer 70 may be electrically connected with the power amplifying module 90.
In some embodiments, the third rf signal may be input to the rf transceiver module 10 through the duplexer 70. The rf transceiver module 10 can perform frequency conversion and demodulation on the received rf signal into baseband digital signal.
It is understood that the power amplification module 90 is electrically connected to the fourth signal port 14 of the rf transceiver module 10. That is, the rf transceiver module 10 can be electrically connected to the duplexer 70 and the quadplexer 80 via the power amplifier module 90.
In some embodiments, the rf transceiver module 10 may transmit rf signals to the second antenna 30 and the third antenna 40 through the power amplifying module 90, respectively.
As described above, the radio frequency circuit 100 provided in this embodiment can distinguish the frequency bands of the first radio frequency signal, the second radio frequency signal, and the third radio frequency signal, and transmit and receive the first radio frequency signal and the second radio frequency signal and the carrier aggregation radio frequency signal of the first radio frequency signal and the second radio frequency signal through the second antenna 30, and transmit and receive the third radio frequency signal through the third antenna 40, and carrier aggregation can be achieved without providing a frequency division module and an expensive device such as a duplexer on the path between the second antenna 30 and the third antenna 40. Therefore, the rf circuit 100 provided in this embodiment can improve the rf performance of the rf circuit and reduce the cost of the rf circuit, and is suitable for mass production.
Referring to fig. 8, fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 1000 may be an electronic device such as a notebook computer, a mobile phone, etc., and is not limited herein.
In particular, the electronic device 1000 may include a radio frequency circuit 100, a processor 200, and a memory 300. The processor 200 may be electrically connected to the rf circuit 100 and the memory 300, respectively.
The radio frequency circuit 100 may be used to receive and transmit radio frequency signal data.
The processor 200 is a control center of the electronic device 1000, connects various parts of the whole electronic device using various interfaces and lines, and performs various functions of the electronic device 1000 and processes data by running or loading an application stored in the memory 300 and calling data stored in the memory 300, thereby performing overall monitoring of the electronic device 1000. For example, the processor 200 may be used to process data received by the rf circuit 100.
The memory 300 may be used to store applications and data, such as may be used to store radio frequency signal data received by the radio frequency circuit 100. The memory 300 stores applications containing executable code. The application programs may constitute various functional modules. The memory 300 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like. Further, the memory 300 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The electronic device 1000 provided by the embodiment of the present application adopts the radio frequency circuit 100 provided by the embodiment of the present application. Therefore, the electronic device 1000 provided by the embodiment can improve the radio frequency performance, and reduce the manufacturing cost and the cost of the electronic device 1000.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The foregoing detailed description is directed to a radio frequency circuit and an electronic device provided in an embodiment of the present application, and specific examples are applied in the detailed description to explain the principles and implementations of the present application, and the description of the foregoing embodiments is only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A radio frequency circuit, comprising: the system comprises a radio frequency transceiving module, a first antenna, a second antenna, a third antenna, a filtering module, a frequency division module, a first multiplexer and a second multiplexer;
the first antenna is electrically connected with the radio frequency transceiving module through the frequency division module and the filtering module;
the second antenna is electrically connected with the radio frequency transceiving module through the first multiplexer;
the third antenna is electrically connected with the radio frequency transceiving module through the second multiplexer.
2. The radio frequency circuit of claim 1, wherein the first multiplexer is a diplexer and the second multiplexer is a quad-multiplexer.
3. The radio frequency circuit of claim 2, wherein the radio frequency transceiver module includes a first signal port, a second signal port, and a third signal port;
the third antenna is electrically connected with the first signal port of the radio frequency transceiving module through the duplexer;
the second antenna is electrically connected with the second signal port and the third signal port of the radio frequency transceiver module through the quadruplex.
4. The radio frequency circuit of claim 3, wherein the radio frequency circuit further comprises a power amplification module, the radio frequency transceiver module further comprising a fourth signal port, the power amplification module electrically connected to the fourth signal port of the radio frequency circuit;
the radio frequency transceiver module is electrically connected with the duplexer and the quadruplex respectively through the power amplification module.
5. The radio frequency circuit of claim 4, wherein the diplexer includes a first signal port, a second signal port, and a third signal port;
the third antenna is electrically connected with the first signal port of the duplexer;
the second signal port of the duplexer is electrically connected with the first signal port of the radio frequency transceiving module;
and the third signal port of the duplexer is electrically connected with the power amplification module.
6. The radio frequency circuit of claim 4, wherein the quadplexer includes a first signal port, a second signal port, a third signal port, and a fourth signal port;
the second antenna is electrically connected with a first signal port of the quadplexer;
a second signal port of the quadruplex is electrically connected with a second signal port of the radio frequency transceiver module;
a third signal port of the quadruplex is electrically connected with a third signal port of the radio frequency transceiver module;
and a fourth signal port of the quadplexer is electrically connected with the power amplification module.
7. The radio frequency circuit of claim 1, wherein the filtering module includes a first filter and a second filter;
the first antenna is electrically connected with the first filter and the second filter respectively through the frequency division module;
the first filter is electrically connected with the radio frequency transceiving module;
the second filter is electrically connected with the radio frequency transceiving module.
8. The radio frequency circuit of claim 7, wherein the frequency division module includes a first signal port, a second signal port, and a third signal port;
the first antenna is electrically connected with a first signal port of the frequency division module;
the first filter is electrically connected with a second signal port of the frequency division module;
the second filter is electrically connected to a third signal port of the frequency division module.
9. The radio frequency circuit of any of claims 1-8, wherein the first antenna is a diversity antenna, and the second antenna and the third antenna are a main set antenna.
10. An electronic device comprising a processor and the radio frequency circuitry of any of claims 1-9, the radio frequency circuitry electrically coupled to the processor, the processor configured to process data received by the radio frequency circuitry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911265708.9A CN111092628A (en) | 2019-12-11 | 2019-12-11 | Radio frequency circuit and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911265708.9A CN111092628A (en) | 2019-12-11 | 2019-12-11 | Radio frequency circuit and electronic device |
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| Publication Number | Publication Date |
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| CN111092628A true CN111092628A (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911265708.9A Pending CN111092628A (en) | 2019-12-11 | 2019-12-11 | Radio frequency circuit and electronic device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105634569A (en) * | 2015-12-31 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Control circuit and terminal achieving carrier aggregation and WIFI double-frequency MIMO |
| CN106685437A (en) * | 2017-01-10 | 2017-05-17 | 广东欧珀移动通信有限公司 | Radio-frequency circuit, radio-frequency circuit control method and terminal |
| CN109687889A (en) * | 2018-12-14 | 2019-04-26 | 惠州Tcl移动通信有限公司 | Radio circuit and terminal |
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2019
- 2019-12-11 CN CN201911265708.9A patent/CN111092628A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634569A (en) * | 2015-12-31 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Control circuit and terminal achieving carrier aggregation and WIFI double-frequency MIMO |
| CN106685437A (en) * | 2017-01-10 | 2017-05-17 | 广东欧珀移动通信有限公司 | Radio-frequency circuit, radio-frequency circuit control method and terminal |
| CN109687889A (en) * | 2018-12-14 | 2019-04-26 | 惠州Tcl移动通信有限公司 | Radio circuit and terminal |
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Application publication date: 20200501 |